Home / 170,816.40-256,224.60-100,774.80

Finding the Fourth Proportional to 170,816.40, 256,224.60 and 100,774.80

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Solution

The fourth proportional to 170,816.40, 256,224.60 and 100,774.80 is: 151,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,816.40 : 256,224.60 = 100,774.80 : x
  2. Step 2: Convert to fraction form
    170,816.40/256,224.60 = 100,774.80/x
  3. Step 3: Cross multiply
    170,816.40x = 256,224.60 × 100,774.80
  4. Step 4: Simplify right side
    170,816.40x = 25,820,982,820.08
  5. Step 5: Solve for x
    x = 25,820,982,820.08/170,816.40
  6. Step 6: Final answer
    x = 151,162.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.